Today in 1970, the Beatles released their 12th and last studio record, Let It Be.

In true rock and roll fashion, the Beatles performed their last public concert as a surprise gig on top of Apple headquarters at 3 Savile Row in London a year before they released Let It Be. The concert was impromptu and actually caused quite a stir in the office and fashion district. The Beatles put on a 42-minute set that was all filmed and later used for the documentary Let It Be. After doing 9 takes of 5 songs, the police asked them to lower the volume and the concert ended.

As you can see from the video, people were going about their business and really didn’t know what to make of the music coming from 5 stories above the street.

Check out the footage from one of Let It Be’s most rocking songs, Get Back from the Beatles’ final public performance back on January 30, 1969.